And frank j



(No Model.)

E. T. POLLA'RD 8v F. J. LUDINGTON.

GORKSCREW.

Patented July 2 Unirse STATE-s EDIVARD T. POLLARD, OF RICHMOND,

VIRGINIA, AND FRANK J. LUDINGTON,

OF VATERBURY, CONNECTICUT.

CORKSCREW.

SPECIFICATION forming part of Letters Patent No. 406,204, dated July 2, 1889.

Application filed December 14, 1888. Serial No, 293,583. (No model.)

.To @ZZ whom t may concern:

Be it known that we, EDWARD T. POLLARD, of Richmond, county of Henrico, Slate ot' Vir ginia, and FRANK J. LUDINGTON, of Taterbury, in the county of New Haven and State of Connecticut, have invented a new Improvement in Corkscrews; and we do hereby7 declare the following, when taken in connection with accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specilication, and represent, in-

Figure l, a front view of the device with the screw in the down position; Fig. 2,-a side view of the same, looking from the left of Fig. l; Fig. 3, a top View; Fig. 4,avertical central section showing side view of the mandrel; Fig. 5, a vertical section through the barrel, the mandrel removed, showing the shoe; Fig. G, a transverse section through the barrel, showing top View ot the shoe; Fig. 7, a side view of the mandrel, looking -from the left of Fig. 4; Fig. 8, a modification in the means for rotating the mandrel.

This invention relates to an improvement in thatclass of corkscrews which are designed to be secured to some stationary point and so that much greater power may be applied than can be done in the lusual hand-corkscrews, the obj ect of the invention being to produce both the entering and withdrawing movement of the corkscrew without changing the direction of the operating-lever; and it consists in the construction as hereinafter described, and more particularly recited in the claims.

A represents a tubular barrel or cylinder, in vwhich the mandrel of the screw is arranged. This barrel is provided with a suitable bracket B, by which it may be secured in a liked position in the usual manner for this class of corkscrews. The lower end of the barrel A is made flaring, also as in the usual construction, to receive the neck of the bottle and support it against the draft of the screw.

C is the mandrel, the external diameter of which corresponds to the interior of the barrel A, and the mandrel at its lower end is provided with a screw D,as in the usual construction. Thc mandrel in its lower portion is screw-threaded; but the screw is cut doubleacting-that is,V both right and lett hand-as seen in Fig'. Ll, the threads being alike in both directions and so that the grooves' between the ribs .cross each other, as shown. A rotative movement is imparted to the mandrel through a bevel-pinion E, supported on a bearing F on the upper end of the barrel, the said pinion being held against movement in an axial direction, but yet free to revolve. It is here represented as so held by constructing the hub of the pinion with an annular groove G and a hook H, secured to the side of the barrel, the nose I of which rests in the groove of the hub. Several of these hooks may be applied, if desired. The means for holding the pinion against movement in an axial direction, but leave it free to revolve, is immaterial, it only being essential that it shall be so held. The mandrel works through the pinion. The one is provided with a spline J, and the other with a corresponding groove K, as scen in Fig. 3, so that the mandrel is free to move in an axial direction through the pinion, but yet the one must partake of the rotation of the other. i Into this pinion a corresponding gear L is arranged to work, this gear, as here represented, being supported upon an axle M, stationary on the barrel, and so that the gear L may revolve freely thereon, and the gear is provided with a suitable lever or crank N, by which rotative movement may be imparted to the gear L, the gear L and pinion E being correspondingly toothed, and so that the rotation ot the gear L will impart corresponding rotation to the pinion E, and this rotation will be communicated to the mandrel C.

Vithin the barrel a shifting-shoe Pis hung upon a pivot, as seen in Figs. 5 and G, the axis ot' the pivot beingat right angles to the axis of lthe mandrel. This shoe in thickness corresponds substantially to the depth of the spiral groove in the mandrel, and at its widest portion corresponds to the width of the groove, that widest portion being in the central line of the pivot, and from that central line the shoe diminishes in width toward its end, terminating in substantially sharp edges. This shoe is adapted to rock on its pivot, as indicated IOO in broken lines, Fig. 5, and as it corresponds to the spiral groove of the mandrel iti'oiiows that the mandrel is rotated its spiral groove will work over that shoe, and the shoe being 5 stationary, the mandrel will receive a vertical movement under su eh rotation corresponding to its spiral groove. The mand rel being at its highestposition, as represented in broken lines, Fig. l, the lowest portion of the rib or 1o screw-thread rests upon the shoe l?. Now, if the mandrel be rotated to the right, the shoe l will turn corresponding to the right-hand spiral groove ol' the mandrel, and se that that righthand spiral groove will work over the shoe and correspondingly draw the mandrel downward until. the extreme down position of the mandrel is reached, as represented in Fig. 4:. There the right-hand spiral groove runs into the left-hand groove, as seen in Fig. 2o 7, and the rotation of the mandrel continued. 'lhat lett-hand groove now engages the shoe, turning it to an `inclination corresponding thereto, the result of which is that the continued rotation ot the mandrel will now, 2 5 through the ieft-hand groove, cause the mandrel to rise until the extreme up position is attained, where again the lett-hand groove at the lower end will run into the right-hand, as seen in Fig. 7, and so that the shoe will be 3o again turned, as indicated in broken lines,

Fig. 7 and the continued rotation of the mandrel stili in the same direction will cause the descent of themandrel as before. This double right and left hand thread, with the rocking 3 5 shoe, is a well-known mechanical movement for imparting reciprocating movement.

rlhe pitch of the right and lett screw-thread of; the mandrel corresponds to the pitch ot the thread of the corkscrew, so that if when 4o the mandrel is in its up position a bottle be introduced to the mouth of the barrel below and there heid the rotation of the mandrel will iirst cause the corkscrew to enter the cork until the mandrel reaches its down position. Then the continued rotation of themandrei will cause the mandrel to risc, and with it the corkscrew and the cork into which it has entered, and thus the cork will be drawn from the bottle. Then, as the best manner for removing the cork from the corkscrew,

the mandrel is rotated in the opposite direction, which will cause it to descend, the same as it rotated in the righthand direction, and until it reaches lits down position; there t-he cork being grasped by one hand, while the other continues the let`thand rotation of the mandrel, the screw will be withdrawn from the cork.

The proportions of the gears through which 6o the mandrel is rotated are best made with reference to the number of rotations required for the mandrel-that is to say, if, as here represented, six full. revolutions ot the mandrel be required for the descent and ascent of the mandrel, thepinion E is made onethird the diameter of the gear L, so that two full revolutions of the gear L will impart the said six full revolutions to the mandrel and give its descent and ascent, leaving the mandrel at its up position ready for the next operation. The position oi' the handle being up will indicate that the mandrel is in the proper position it'or operation. it will be evident that the arrangeinent oi' the gears may be varied to suit circumstances.

ln some cases the gears maybe omitted entirely and a lever or crank applied directly to the mandrel, as seen in Fig. 8. \Vhiie, therefore, preferring the gear-connection, as we have described, we do not wish to be understood as limiting theinvention to the employment of the gears.

fe claiml. In a corkscrew, the combination ot a tubular barrel constructed at its lower end to form a seat for the neck ot a bottle, a mandrel arranged to work vertically in said barrel and provided at its lower end with a corkscrew, the said mandrel constructed with a right and left hand screw-thread, the said threads corresponding substantially to the screw-thread of the corkscrew, and the said spiral grooves of the threads on the mandrel crossing each other, a rocking shoe arranged upon a pivot within the barrel and adapted to engage either the said right or lei't hand thread on the mandrel, and means, substan tially such as described, to impart rotation to said mandrel, and whereby under such rotation ei the mandrel it will be caused to descend and then ascend without change in the direction ot rotation.

2. 'lhe combination of the tubular barrel 1M the mandrel (l, arranged therein, said mandrel provided with a corkscrew at its lower end and constructed with a right and left hand screwthread upon its surface, the spiral grooves of the said threads crossing each other, a rocking shoe l), Supported upon a pivot upon the inside ot the barrel, the said shoe corresponding to the said grooves on the mandrel and adapted to engage either as they are presented, a pinion E, arranged upon said barrel concentric with said mandrel, and through which the said mandrel. works, the said pinion free for rotation,butheid against movement in an axial. direction, said pinion and mandrel, the one constructed with a spline and the other with a corresponding groove, and a gear, as L, arranged to work into said pinion and provided with a suitable lever, whereby rotative movement may be imparted to said gear, substantially as described.

EDVARD T. iOLLARi'). FRANK J. LUDINGTON. Witnesses Afor Pollard:

ii. W. STAMPER, .Toi-IN DUNLOP. Vitnesses for Ludingtion A. iii. BLAKESLEY, Guo. E. JUDD.

TIO 

